FW: [MLB-WIRELESS] Cable Question

[ABBENHUYS, Ryan]

hrmmm

okay then,  does anyone know of a supplier in the eastern suburbs where I
could grab a metre or two of LMR-400?
I've rung around a few local places enquiring about connectors for LMR-600
and I found most hadn't even heard of LMR cable :\

-----Original Message-----
From: Tony Langdon [mailto:tlangdon at atctraining.com.au]
Sent: Tuesday, 26 February 2002 7:59

> so is http://www.timesmicrowave.com/cgi-bin/calculate
> 
> Attenuation (db/ 100 mtrs) 40.622
> 
> (use as little of this as you can)

There's an interesting notation on that site that will affect anyone using
RG-213.  It says...

"The attenuation of cables with Bare Copper and Tinned Copper outer
conductors can vary substantially from the theoretical value due to
oxidation and therefore we recommend they not be used above 1 GHz. Note: the
outer conductor of LMR cables is the aluminum tape."

Conclusion:  RG-213 is not really well suited to use at 2.4 GHz, and if
used, should only be used indoors, as weathering will increase the risk of
oxidation.

LMR series cables don't have this problem.



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